Improvement in steam-traps



.XW/52M@ im? 727-572 UNITED STATES ATENT FFICI@ J. WV. BISHOP, OF NEW HAVEN, CONNECTICUT.

IMPROVEMENT IN STEAM-TRAPS.

l" 0 a/ZZ whom, it may concern:

Be it known that 1 J. WV. BISHOP, of New Haven, in the county of New Haven and State ot' Connecticut, have invented a new and Im proved Steam-Trap; and I do hereby declare the following to be a full, clear, and exact defcription of the same, when taken in connection with the accompanying drawing and the letters ot' reference marked thereon, and which said drawing constitute part ot' this specitication, and represents a vertical central section ofthe trap, with inlet and outlet pipes broken ott".

rlhe object of my invention is to allow the Condensation to pass from steam-pipes without the escape of steam therefrom, principally used in connection with pipes for steam-heating purposes, or other lon g run otl steam-pipe.

'Io enable others skilled in the art to make and use my steam trap I will proceed to describe the construction and operation of the same, as illustrated in the accompanying draw ing.

Bis a hollow metal vessel; C, the steam-pipe through which steam is conducted, and which opens into the vessel B near its to). From the bottom ot` the said vessel a waste-pipe, M, leads to a valve, A, operated as hereinafter described, which when free is always open, as shown. Within the vessel B, and supported by a rim resting on a corresponding rim of the vessel B, I place a second vessel, D, of such size as to leave a space around the vessel D. The said vessel l) has no communication with the vessel B surrounding it. Over the second vessel, D, I place a plate, E, resting in the rim of the vessel l), and constructed so as to form the lower part of a chamber, a. Into the slid plate E, I insert a tube, F, which extends nearly to the bottom of and opens into the vessel D, and also through the plate E to the chamber a, I forni and fix a diaphragm, c, of any suitable iiexible material, then cover the whole with a plate, H, constructed so as to form a seeord chamber, a. rlhe said chamber a should have an opening, through which air may pass to or from the said chamber, accordingly as the diaphragm is lowered vor raised, increasing or decreasing the capacity of the said chamber, then, by sufficient bolts or otherwse, I secure the several parts tog( ther, substantiallyv as shown in drawings. To the said diaphragm I attach a hollow spindle, I, the

upper end ofwhich is closed by a cap, t'. The

said spindle extends up through the plate H, in a suitable guide, f, to and under a lever, L, which said lever has its i'ulcrum at c, the other end of the said lever L connected by a rod, N, to operate the valve A. Before placing the cap i upon the spindle, I till the vessel D, through the said tube 1, with water or other i'luid, as denoted in blue. Now place the cap over the spindle, set the lever onto the cap, connected with the valve, as before described, and the trap is complete.

Vhen steam is first admitted into the pipe C, and continually thereafter more or less condenses, the trap must be placed at alow point, so that the pipe C may incline toward it. The condensed steam will run into the vessel B, through, and out at the open valve A. As soon as the condensation has ceased and steam enters the vessel B, which will quickly generate steam from the ilnid in the inner vessel, l), the iiuid in the said vessel I), loy the pressure of the steam so generated upon it, will rise through the tube F, fill the chamber a, and force the diaphragm c, with the spindle thereto attached, upraising the lever L, which, being connected with the valve A, closes it, and thus prevents the escape ot' steam therefrom, and will so remain until the vessel B shall have become so far lled with condensed steam as to cool the iiuid or condense the steam in the vessel I) sufficiently to allow the diaphragm to fall, when the valve A will be again opened and the water iiow from the vessel B, as before described.

Having therefore fully described my invention, what I claim as new and useful, and de sire to secure by Letters Patent, is-

The combination of the vessels B and D, diaphragm c, or its equivalent, withinlet and exit pipe C and M, constructed and arranged to operate a valve, A, substantially as and for the purpose specified.

J. IV. BISHOP.

Witnesses:

JOHN E. EARLE, RUFUs SANFORD. 

